IDEC SX5L Series - Manual (Page 46)

4: S OFTWARE S PECIFICATIONS
SX5L C OMMUNICATION T ERMINAL U SER ’ S M ANUAL 4-11
Initial Status Transmission
This functional block sends output network variables to the network within 3 seconds after powerup. The delay depends on
a random number based on the Neuron ID, and differs on each node.
The sending time can be delayed by changing the nciPwrup value designated in the Node Object functional block. At sys-
tem startup, if the SX5L sends output network variables before the addressee device is ready to receive communication, set
the nciPwrup to a larger value.
The preset value for nciPwrup can be between 0 and 60 seconds (0.1-sec increments). The sending time is determined by
the sum of the nciPwrup value and a random number.
Event-driven Transmission
When receiving a request (polling) from the network or when detecting a change larger than the value designated by
nciMinDelta[0] through nciMinDelta[3], this functional block sends a corresponding output network variable.
Heartbeat Transmission (Periodical Transmission)
When the analog input value at any input terminal does not change, this functional block sends the output network variable
of the analog input value repeatedly at intervals designated by nciMaxStsSendT1. When the nciMaxStsSendT1 value is 0,
the heartbeat transmission is disabled.
The configuration type of nciMaxStsSendT1 is SNVT_elapsed_tm (day, hour, minute, second, millisecond). When a value
over 12 hours is set, the interval is designated as 12 hours 00 minutes 00 seconds. The millisecond value has no effect.
Scaling and Sampling Intervals
The input data of 1 to 5V or 4 to 20 mA DC received by channel 0 is converted to a value in the range between nciMin-
Rng[0] and nciMaxRng[0], and the resultant output network variable nvoAI0 is sent to the network. Similarly, for channels
1 through 3, network variables nvoAI1 through nvoAI3 are sent to the network.
When the input value drops below 1V or 4 mA DC or exceeds 5V or 20 mA DC, an input in the range between –4% and
+104% is converted and the resultant output network variable is sent to the network. When the input value further drops or
exceeds, output network variable 7FFF is sent as input error data.
The configuration type of nciMinSendT1 to designate the minimum transmission interval is SNVT_elapsed_tm (day, hour,
minute, second, millisecond). When a value over 60 seconds is set, the interval is designated as 60 seconds.
Changing SVNT Type
The type of output network variables nvoAI0 through nvoAI3 can be changed. To change the type of the output network
variable, use the LonMaker Browser. Right-click on the network variable you want to change, and from the short-cut
menu, select [Change Type]. The changeable network variable types are listed in the table below, with the SNVT index
approved by the L
ON M ARK Interoperability Association.
Index Type Index Type Index Type Index Type
1 SVNT_amp 20 SVNT_length_mil 41 SVNT_vol 100 SVNT_density
2 SVNT_amp_mil 23 SVNT_mass 42 SVNT_vol_kilo 102 SVNT_rpm
3 SVNT_angle 24 SVNT_mass_kilo 43 SVNT_vol_mil 104 SVNT_angle_deg
4 SVNT_angle_vel 25 SVNT_mass_mega 44 SVNT_volt 105 SVNT_temp_p
5 SVNT_btu_kilo 26 SVNT_mass_mil 45 SVNT_volt_dbmv 107 SVNT_time_sec
6 SVNT_btu_mega 27 SVNT_power 46 SVNT_volt_kilo 110 SVNT_area
8 SVNT_count 28 SVNT_power_kilo 47 SVNT_volt_mil 113 SVNT_press_p
9 SVNT_count_inc 29 SVNT_ppm 71 SVNT_grammage 123 SVNT_time_min
13 SVNT_elec_kwh 30 SVNT_press 76 SVNT_freq_hz 124 SVNT_time_hour
14 SVNT_elec_whr 31 SVNT_res 77 SVNT_freq_kilohz 125 SVNT_ph
15 SVNT_flow 32 SVNT_res_kilo 78 SVNT_freq_milhz 129 SVNT_smo_obscur
16 SVNT_flow_mil 33 SVNT_sound_db 79 SVNT_lux 131 SVNT_temp_ror
17 SVNT_length 34 SVNT_speed 81 SVNT_lev_percent 138 SVNT_volt_ac
18 SVNT_length_kilo 35 SVNT_speed_mil 82 SVNT_multiplier 139 SVNT_amp_ac
19 SVNT_length_micr 39 SVNT_temp 98 SVNT_pwr_fact